King of Prussia

King of Prussia is a census-designated place in Montgomery County, Pennsylvania. In 1719, the King of Prussia Inn was built by Welsh Quakers, and George Washington visited the tavern in November 1777 while the Continental Army was encamped at Whitemarsh, bivouacking at Valley Forge a few weeks later. During the 1960s, King of Prussia experienced suburban development, becoming home to a mall, a large business park, and housing developments. In 2010, King of Prussia had a population of 19,936 people.